JPS6010852Y2 - roof version - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a roof plate for use in the roof construction of a prefabricated building with a gentle roof slope.

Conventionally, there are PC versions, ALC versions, etc. for this type of roof, and in both cases, the roof is constructed on-site, and then fused and heated asphalt waterproofing work, Comsheet waterproofing work, etc. are applied on-site. However, this has the disadvantage that on-site work is complicated and the construction period is long.Especially, small-scale waterproofing works such as those for prefabricated houses, which are common these days, require a lot of time and effort to prepare, and are expensive. In addition, the rubber sheet waterproofing work that is the cause of this problem has the drawback that the joint part is damaged by the vibrations of the prefabricated house and water leakage occurs because the comb sheet is attached to the roof slab with a rubber adhesive.

The present invention was developed in view of this drawback, and will be explained with reference to the drawings. Fig. 1 is a perspective view of the roof plate of the present invention.

1 is a cement plate 2 is a waterproof sheet, and sand roofing, asphalt roofing, rubber sheet, PVC sheet, etc. are preferable.

3 is a waterproof mixture of asphalt, synthetic rubber, an aqueous emulsion of synthetic resin, and cement.

A mixture of a nonionic or cationic asphalt emulsion, a nonionic synthetic rubber latex, and a nonionic synthetic resin emulsion mixed with cement is preferable.

The synthetic rubber used is SBR. NBRXBR,CR
It is recommended to use latex such as .

As the synthetic resin, acrylic ester resin, polybutene polymer, polyurethane resin, and ethylene vinyl acetate resin are used in the form of an emulsion, or an oily liquid resin is mixed with an asphalt emulsion.

4 is open-mesh coarse cloth, and preferably synthetic fiber, glass fiber nonwoven fabric, or open-mesh woven fabric.

5 is a colored paint, preferably a weather resistant paint or a light reflective aluminum coating.

FIG. 2 is an enlarged sectional view taken along the line A-A in FIG. 1.

FIG. 3 is a sectional view when the waterproof sheet 2 is omitted.

FIG. 4 is a cross-sectional view of a structure in which a layer 5' of a mixture of a binder and mineral powder is provided on the surface so that it can be easily walked on.

As a binder, an emulsion of acrylic resin, urethane resin, epoxy resin, or bituminous material is used, and a coating layer (thickness 0.3
~3 anus) is desirable.

The gist of this invention is an aqueous emulsion of asphalt, synthetic rubber, and synthetic resin with a solid content of 50 to 70%.
This roof slab is constructed using a waterproof mixture 3 in which 30 to 50 parts by weight of cement is added to 0 parts by weight.

In other words, a waterproof sheet 2 is attached to a cement slab 1 (the waterproof sheet may be omitted), and a roof slab with a waterproof layer formed by laminating and integrating a waterproof mixture 3 and open sackcloth 4 alternately thereon is manufactured at a factory. Produce it and make it with the appropriate dimensions, ie (1m x Z width), (
The finished product was transported to a size of 29×2rrL), (1 m, x 3 m,) and used as a roof slab for a prefabricated building.

The surface is coated with either a colored paint 5 finish or a light walking mixture layer 5' depending on the application.

Regarding waterproof mixture 3, an aqueous emulsion of asphalt, synthetic rubber, and synthetic resin exhibits self-hardening properties when mixed with cement, and has elasticity, toughness, hardness, and weather resistance suitable for roofing. In order to form a hardened layer, the solids content of the aqueous emulsion should be between 50 and 70% (by weight).

If it is less than 50%, the water content is too high and it takes a long time to exhibit self-curing properties, and the cured layer becomes porous and has poor quality.

If the solid content exceeds 70%, the emulsion becomes unstable and gels when cement is mixed in, impairing workability and making production impossible.

Also, the amount of cement is 30 to 5 parts by weight per 1 part by weight of the aqueous emulsion.
It must be the salivary part.

If it is less than 30 parts by weight, it will not exhibit self-hardening properties, and if it is more than 5 parts by weight, it will harden quickly and have poor workability, and the cured layer will have poor elasticity and toughness, making it unsuitable as a constituent layer of roof slabs.

In use, large factory-produced roof slabs of the present invention are laid out to form the roof of a prefabricated building, and the joints are treated with the waterproof mixture 3 and waterproof tape to make them completely watertight. It is strong against vibration and can be easily applied and finished without breaking.

In the present invention, since the waterproof mixture 3 is composed of asphalt, synthetic rubber, synthetic resin, and cement, it has waterproofness, durability, elasticity, toughness, and weather resistance, and is self-hardening, so it is similar to cement. It is effective as a roof plate for a prefabricated house by laminating open sackcloth 4 alternately on top of the plate 1.

In addition, since the above-mentioned joints are laid out and processed, the on-site work is simplified, which is very convenient, and is effective in reducing costs and shortening the construction period.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of the roof plate of the present invention, Fig. 2 is an enlarged sectional view taken along the line A-A in Fig. 1, Fig. 3 is a sectional view when the waterproof sheet 2 is omitted, and Fig. 4 is It is a sectional view of a light pedestrian roof plate. 1... Cement plate, 2... Waterproof sheet, 3... Waterproof mixture, 4... Open sackcloth, 5... Coloring. Paint layer, 5'... Light walking mixture layer.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. Cement slab 1 or roofing with sand attached thereon, waterproof sheet 2 such as a rubber sheet made of straw ash, asphalt with a solid content of 50 to 70% and synthetic This roof slab is made by laminating and integrating a waterproof mixture 3 made by adding 30 to 50 parts by weight of cement to 100 parts by weight of an aqueous emulsion of rubber or synthetic resin with open sack cloth 4, and finishing the surface with a colored paint 5. 2. The roof slab according to claim 1, wherein the colored paint 5 is a layer 5' of a mixture of a binder and mineral powder that can be easily walked on.